Study to Assess the Long Term Safety and Efficacy of UX007 in Participants With Glucose Type 1 Deficiency Syndrome (Glut1 DS)

The study will enroll up to 40 pediatric, adolescent and adult Glut 1 DS participants who have completed the UX007G-CL201 (NCT019933186) study and, at the discretion of the Sponsor, additional participants from other clinical studies, investigator sponsored trials (ISTs), or expanded access/compassionate use treatment.